Last-touch attribution
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An attribution model that gives 100% of the credit to the last marketing interaction before conversion. Biased toward bottom-of-funnel channels.
Last-touch attribution gives all the credit to the last interaction before a conversion. If a customer read five blog posts, attended two webinars, and then clicked a retargeting ad before requesting a demo, the retargeting ad gets 100% credit.
Last-touch is the default in most analytics tools. Google Analytics uses last-touch by default. Most CRM systems attribute opportunities to the last campaign touch. This makes last-touch the most common attribution model in B2B.
The bias is toward bottom-of-funnel channels. Demo request pages, retargeting ads, and sales outreach get overweighted because they happen last. Brand building, content marketing, and events get underweighted because they happen earlier. Companies that rely solely on last-touch tend to underinvest in awareness and overinvest in conversion.
Examples
Last-touch overvalues retargeting.
Last-touch data shows retargeting drives 35% of demo requests. The team doubles the retargeting budget. But retargeting only works on people who already visited the website. Without the blog posts and webinars that brought them to the website initially, retargeting has nobody to retarget.
Last-touch in a CRM.
The sales team creates an opportunity and the CRM auto-populates the source as 'Direct - Demo Request.' Last-touch attribution credits the demo request form. But the prospect attended three events and read twelve blog posts over six months before requesting the demo. The journey was much longer than last-touch suggests.
Last-touch for conversion optimization.
Last-touch data shows that prospects who attend a live demo convert at 2x the rate of those who watch a recorded demo. The team invests in more live demo slots. For this specific conversion point, last-touch is the right model because you are optimizing the final step.
In practice
Read more on the blog
Frequently asked questions
Why is last-touch attribution problematic?
It overvalues the final interaction and ignores everything that came before. In B2B with long sales cycles and multiple touchpoints, the last touch is rarely the reason someone bought. It was the culmination of a journey. Relying solely on last-touch leads to underinvestment in awareness and mid-funnel activities.
When is last-touch attribution useful?
For optimizing specific conversion points. If you want to know which landing page design converts best, or whether live demos outperform recorded ones, last-touch at that specific conversion point is the right measurement. The problems arise when you use last-touch for overall budget allocation.
Related terms
An attribution model that gives 100% of the credit for a conversion to the first marketing interaction. Simple but incomplete.
An attribution model that distributes credit across multiple marketing touchpoints in the buyer journey. More accurate but more complex.
A statistical approach to measuring the impact of each marketing channel on business outcomes. Uses aggregate data, not individual tracking.
The percentage of people who take a desired action. Visitors who sign up. Leads who become customers. The measure of how well each stage of the funnel works.
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